Machine for rolling tubes.



PATENTED MAY 1, 1906. R. KOENIG. MACHINE FOR ROLLING TUBES.

APPLICATION FILED JULYM, 1904.

5 SHEETS-SHEET 1.

No. 819,143 PATENTED MAY 1, 1906 R. KOENIG.

MACHINE FOR ROLLING TUBES.

APPLICATION FILED JULY H, 1510-1,

5SHEETS-SHBET 2 I $13 dllorucu /l-'- R. KOENIG: MACHINE FOR ROLLING TUBES.

APPLICATION FILED JULY 14. 1904.

PATENTED MAY 1, 1906.

5 SHEBTSSHEBT 3.

PATENTED MAY 1, 1906 R. KOENIG.

MACHINE FOR ROLLING TUBES.

APPLICATION FILED JULYH, 1904.

5 SHBETSSHEET 4.

PATENTED MAY 1, 1906.

R. KOENIG. MACHINE FOR ROLLING TUBES.

APPLICATION FILED JULY H, 1904 5 SHEETS-SHEET 5.

' llhllTED S lSATlXES ATENT ()hl lillfl.

ROBERT KOENIG, OF NEW YORK, N. Y., ASSIGNOR TO THE PHENIX TUBE COMPANY, OF JERSEY CITY, NEW JERSEY,

J EBSEY.

A (HlOliAllON OF NEW MACHINE FOR ROLLING TUBES.

Specification of Letters Patent.

Patented May 1, 1906 Application filed July 14, 1904. Serial No. 216,456.

To mi whom it may concern,-

it known that 1, ROBERT Konxro, n citi- Zen of the United States, residing in the borough of Brooklyn, in the city of New York, county of Kings, and State of New York, have nvented a new and useful Machine for. Rolling Tubes, of which the following is n specification.

My invention relates to a machine for forming tubes from flat materiel, particularly o'old sheet metal, on operation which is ordinarily and so far its I am aware has in a practical commercial we v alweys been performed by drawing a sheet or strip of metal through a drawing-plate upon a clrewbench, :1 tag which can be readily passed through the hole in the plate and grasped by the tongs having first been formed at one end of the sheet or strip.

"he object of the invention is to save the time, labor, and waste involved in the preparation of the sheet of metal for the drawingplste and to provide a machine wnich will not only roll tubes from flat material without previous manipulation, but will also, with no greet-er operating expense, materially increase the output over that obtained by the present draw-bench practice. 1 attain this obj ct by the mechanism hereinafter fully 0 described, and pointed out in the claims, and illustrated in the sccompanying drawings, in vih ich---- Figure 1 is front elevation of the entire machine; Fig. l, u plan thereof; Fig. 3, an clovution of the 'l'inishing' end ol" the machine; Fig 4;, u lonvitiulinsl vertical section on the line i of Fig. 2 and :1 detailed plan, and

lo itudiuel vertical section on the h ol a part oi' the machine. rel'orcnce-numerztls indicate simi pt rts throughout the several figures of the c o plate [(7, suitably mounted on I v, iu'ds, constitutes the framework of t no, to which power is supplied to l Uuwmtc the rollers, hiircinnl'tcr referred to, by 'zi bell-pulley- H on :1 slmlt l), which 1 ;;'crs lll, secured to the urn 'L lu i its main axis. and ent'h roller and near one end of the table. the upper or male roller rests uormully upon and is supported by the lower roller, its convex face 14 titling into the corresponding: concave face 15 of the letter; but when in operation it sheet or strip of metal. us 20, is led between them, the upper roller rises, its upwn rd mo vcment and the pressure with which it bears on the sheet or strip bein regulated by setscrews 21 22. These rollers are rotated positivcly in the dirmtiou indicated-by the urrows, Figs. l and -l, by :1 geuntmin compris ing the gear-wheels 23, ll 25 ll-l 31' 32, the two latter being mounted, respectively, on the shalt l7 oi the lower roller and shaft 16 of the upper roller, gem 31 (not shown) meshing with gear 30 on one side and with gear 3') immediately above it.

Two finishing-rollers 33 34, each with a groove 33* 34 semicircular in section around its Face, are mounted vertically one shove the other on shults :17 28, respectively, which shafts turn in verticully-sliding j ournel-boxos in standards 3:") 36, secured to the upper side of the table, shaft 27 luivinp on additional bearing in a third standard 37. The upper roller rests upon and is supported by the lower roller, and their laces ore kept in con tact by set-screws 38 39. The rollers lire rotnted in the direction indicated by the an rows, Figs. 1 and L, the lower roller by the gear-wheels 223 24, the hitter mounted on its shaft 27, end the upper roller by n gennwheel '26 on its shaft 2:5, which meshes with a gem-- wheel 25 on shaft 27.

A series (here shown three in number) of iutermediutc grooved rollers 4O 41 42, arranged in pairs, revolve reel on entifrictionrollers on vertica shafts 43 A which are set incylimlricul sockets in the upper side of a horizontal bed-mete ll), bolted to e flanged. web 47, secured to the upper side oithe table and are held therein by set-screws 18 49 50. A top plate :31 provides upper bearings for the vertical shafts and rests upon shoulders thereon, being; secured thereto by nuts 52 53 5!. That port of ouch shaft on which the roller revolves (-lll oi shaft 43) is eccentric t is thereby made indcpcndcntly adjustable l'mririontnlly und can be moved toward or uwii'y from its companion and mu h pair brought into uliuement with the starting and finishing roller by turnimr the shaft around in its bearings, first loosening the set-screw and nut (48 and 52 in case of shaft 43) and then. tightening them to retain the adjustment. The grooves around the faces of ea h pair of intermediate rollers are alike; but those of each pair difi'er from those of the other pairs, the series being so designed and arranged as to take the sheet or strip of material as it comes from the startingrollers and roll it progressively into the substantially tubular form in which it is received by the l'inisning-rollers. The groove 40 ol the first pair of rollers 40 has a plane upper side and a lower side and bottom formed by a tapering concave surface which. intersects the plane upper side at an angle. Rollers 41 of the second pair have a groove 41, similar to that of the first pair, except that its tapering surface is somewhat more concave and connects with the upper plane surface by a comparatively sharp out-ward curve. The groove 4'2 of the final pair of these rollers 42 is approximately semicircular in section and little larger in size than the groove of the tinishing-rollers. By thus shaping the peripheral grooves of these intermediate rollers the upper sides of the grooves serve to press the central portion of the sheet or strip of material down against and to conform it to the curvature of the lower sides of the grooves, and l am thereb enabled to do away with the guides spindhes, or other mandrcls heretofore found necessary in machines ol this class.

A plate 55, attachedto the bed-plate 46, affords a support for the material as it l ed l'romthe starting-rollers to the first pair of intermediate rollers, and a second plate 56 serves a similar purpose between the first and second pairs of in termcdiate rollers. Parallel guidestrips 57.58, bolted to a plate 59, which is mounted on a flanged Web (30, form a guide- Way in which the material is fed to the machine.

The operation of the machine, as hereinabove described, is as follows: A sheet or strip of llat material is started through the guideway to the starting-rollers, Which'draw it in, curvcit along-its longitudinal center, and feed it through the intermediate and to the finishing rollers. The first pair of interimdiatc rollers turns up the sides and further curves the center of the sheet or strip, While the next pair turns in its edges and at the same time maintains the central curve, and the last pair curves its sides and brings. its edges nearly together. The ,iinishing-rollers then-seize the substantially tubular strip, bring its sides together to closc the tube, and feed it out ()1 the machine.

in many cases one tube is titted in and used as a lining for an outer tube or shell as, for example, in the manufacture ol ironlined brass tubingand in order to avoid a separate operation for the insertion ol one tube Within another, an operation heretof re I performed by hand, I provide an attachment for my machine by means of which the end of an outer tube, previously formed, is held close to and in alinement with the opening formed by the grooves of the linishing-rollcrs, so that the lining-tube as it is rolled up in the machine can be fed directly from the 'iinishing-rollcrs into the outer tube. This attachment consists of two clamping members, a lower member (51, which is supported horizontally upon two standards 62 63, secured to the upper side ol'lhe table behind the linishing-rollcrs, and an upper member or lever 64, which is hinged to the lower member at one end, as at (35, and is provided with a handlc till at its other end.' Clamping-blocks 67 68, each having a longitudinal groove 67" (38 of semicircular section in its contact-face, are set Hansversely into and secured to the inner sides of the clamping members respectively, and when the clamping members are brought together these grooves form a cylindrical opening in alincmcnt with the opening between the grooved linishing-rollers, in which the end of an outer tube ()9 may be placed and held, as shown in Fig. 4. When not required for use, this attachment may he reanovcd entirely, or the lever may simply be thrown back and the face-block tan if out of the lower clamping member, il necessary.

While l have described a machineadapted to rolling (ubcs of circular cross section, l wish it understood that lv do not limit myself thereto, since it is obvious that changing thc form of the grooves ol the finishing-rollers and perhaps one or more pairs ot intermediate rollers tubes having an elliptical or other shaped sect ion may be made equally as well, and other modilicatimis may bemade both in the construction ol the machine and in the arrangement of its parts without departing from thespirit ol" my invention 01' losing the acv'antages to be obtained therefrom.

lVhat I claim as new, and desire to secure by Letters Patent, is,

1. in a machine for rolling tubes, the combination of starting and finishing rollers and -one or more pairs of intermediate rollers, to feed a sheet or strip of material and roll it progressively from a Hat toa tubular shape, said intermediate rollers being placed horizontal ly and provided with peripheral grooves so shaped that the uppei sides of said grooves will press the central portion of the sheet or strip of material down against and conform it to the shape of the lower sides of said grooves.

in a machine For rolling tubes, the combination of pair of starting-rollers, apair of finishing-rollers, and one or more pairs of horizontal intermediate rollers, said intermediate rollers having peripheral grooves so shaped that their upper sides will press the sheet or strip of material down against and IXO conform it to the shape of their lower sides, I and means for positively rotating one or more of said pairs of rollers to feed the sheet or strip of material through the machine.

3,. In a machine for rolling tubes, the combination of positively-rotated starting and finishing rollers, and one or more pairs of loose horizontal intermediate rollers rovided with peripheral grooves so shaped t iat their upper sides will cause a sheet or strip of ma terial to press down against and conform to the shape of their lower sides.

4. In a machine for rolling flat sheets or strips of material into tubes, the combination of male and female starting-rollers, grooved'finishing rollers, and a plurality of sets of horizontal intermediate grooved rollers the grooves of each set differing in'shape from those of each other set and so shaped and arranged that the upper sides of the grooves will cause the sheet ,or strip of material to conform to the shape of their lower sides and thereby progressively advance the curvature of the sheet or strip from the preliminary shaping given it by the startingrollers to approximately the finished shape which it receives in passing through the finishing-rollers, and means for feeding the sheet or strip through said rollers.

in testimony whereof I have hereunto signed my name in the presence of two Witnesses.

ROBERT KOENIG. Vitnesses:

ALBERT CONNELLY, WILLIAM H. *Cnow. 

